to fix this problem, all you have to do is this:

NOTE: this applies to windows 7 only, for windows vista or windows xp, what you can do is do a search in your computer the the following file:

Adobe Photoshop CS Prefs.psp

or you can visit this page which gives you more details:
Photoshop Hangs Stucks Stops - Reading Text Global Resources...Done

ok, if you have windows 7 go photoshop settings folder at:

C:\Users\ANYUSER\AppData\Roaming\Adobe\Photoshop\8.0\Adobe Photoshop CS Settings

NOTE: ANYUSER is whatever your user is for your computer

there you will find a file called: Adobe Photoshop CS Prefs.psp

rename it to Adobe Photoshop CS Prefs-old.psp

now restart your photoshop again, it should work now